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@ARTICLE{Polani:909963,
      author       = {Polani, Shlomi and MacArthur, Katherine E. and Kang, Jiaqi
                      and Klingenhof, Malte and Wang, Xingli and Möller, Tim and
                      Amitrano, Raffaele and Chattot, Raphaël and Heggen, Marc
                      and Dunin-Borkowski, Rafal E. and Strasser, Peter},
      title        = {{H}ighly {A}ctive and {S}table {L}arge {M}o-{D}oped
                      {P}t–{N}i {O}ctahedral {C}atalysts for {ORR}: {S}ynthesis,
                      {P}ost-treatments, and {E}lectrochemical {P}erformance and
                      {S}tability},
      journal      = {ACS applied materials $\&$ interfaces},
      volume       = {14},
      number       = {26},
      issn         = {1944-8244},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2022-03553},
      pages        = {29690 - 29702},
      year         = {2022},
      abstract     = {Over the past decade, advances in the colloidal syntheses
                      of octahedral-shaped Pt–Ni alloy nanocatalysts for use in
                      fuel cell cathodes have raised our atomic-scale control of
                      particle morphology and surface composition, which, in turn,
                      helped raise their catalytic activity far above that of
                      benchmark Pt catalysts. Future fuel cell deployment in
                      heavy-duty vehicles caused the scientific priorities to
                      shift from alloy particle activity to stability. Larger
                      particles generally offer enhanced thermodynamic stability,
                      yet synthetic approaches toward larger octahedral Pt–Ni
                      alloy nanoparticles have remained elusive. In this study, we
                      show how a simple manipulation of solvothermal synthesis
                      reaction kinetics involving depressurization of the gas
                      phase at different stages of the reaction allows tuning the
                      size of the resulting octahedral nanocatalysts to previously
                      unachieved scales. We then link the underlying mechanism of
                      our approach to the classical “LaMer” model of
                      nucleation and growth. We focus on large, annealed Mo-doped
                      Pt–Ni octahedra and investigate their synthesis,
                      post-synthesis treatments, and elemental distribution using
                      advanced electron microscopy. We evaluate the
                      electrocatalytic ORR performance and stability and succeed
                      to obtain a deeper understanding of the enhanced stability
                      of a new class of relatively large, active, and long-lived
                      Mo-doped Pt–Ni octahedral catalysts for the cathode of
                      PEMFCs.},
      cin          = {ER-C-1},
      ddc          = {600},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {5351 - Platform for Correlative, In Situ and Operando
                      Characterization (POF4-535)},
      pid          = {G:(DE-HGF)POF4-5351},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {35731012},
      UT           = {WOS:000820935700001},
      doi          = {10.1021/acsami.2c02397},
      url          = {https://juser.fz-juelich.de/record/909963},
}